today it seems like the RBL Pattern is broken, some E-Mails are getting blocked who are not on the Blacklist.
we got the same issue, but with the new Pattern-Files a couple of minutes ago, it's working again.
what pattern version are you using?
At the moment we have pattern 204124 installed.
We had this issue between 9 and 10:10 am (Germany) o'clock.
We are seeing the same thing with multiple customers.
The log says that IPs are blocked due to an RBL entry with cbl.abuseat.org or sbl-xbl.spamhaus.org and rejects the mail. But when you check with the homepage of Spamhaus or CBL, the IP is not listed. Nor is it listed at RBL aggregators at MX Toolbox or MutliRBL.valli.org
We're not seeing a pattern which IPs or hosts are blocked at this moment.
The Sophos in question already has the 204124 pattern but it's still happening.
lol: It's blocking mails from Sophos Central as well (cbl.abuseat.org)
Same issue also with the newst pattern 204125
I have the same problem. All email is rejected with message -> Rejected: RBL (cbl.abuseat.org)
at 12 o'clock the issue is back... Some domains are blocked, some not.... (Auf Deutsch: Blinker-Problem - geht, geht nicht)
same problem here since yesterday